[1] Ulm Univ, Inst Psychol & Educ, Clin & Biol Psychol, D-89081 Ulm, Germany
[2] Univ Innsbruck, Inst Psychol, A-6020 Innsbruck, Austria
[3] Inst Doping Anal & Sports Biochem IDAS Dresden, D-01731 Kreischa, Germany
[4] Ludwig Maximilians Univ Munchen, Dept Anaesthesiol, D-82131 Munich, Germany
[5] Ulm Univ, Inst Psychol & Educ, Univ Psychotherapeut Outpatient Clin, D-89073 Ulm, Germany